GB425219A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB425219A GB425219A GB22082/33A GB2208233A GB425219A GB 425219 A GB425219 A GB 425219A GB 22082/33 A GB22082/33 A GB 22082/33A GB 2208233 A GB2208233 A GB 2208233A GB 425219 A GB425219 A GB 425219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- envelope
- wires
- ring
- asbestos
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN34220D DE653844C (de) | 1932-09-26 | 1932-09-26 | Insbesondere fuer Lichtausstrahlung dienende elektrische Entladungsroehre mit Dampf schwer verdampfbarer Metalle |
Publications (1)
Publication Number | Publication Date |
---|---|
GB425219A true GB425219A (en) | 1935-03-05 |
Family
ID=6477019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22082/33A Expired GB425219A (en) | 1932-09-26 | 1933-08-05 | Improvements in or relating to electric discharge tubes |
Country Status (5)
Country | Link |
---|---|
US (1) | US1951124A (ko) |
BE (1) | BE398544A (ko) |
DE (1) | DE653844C (ko) |
FR (1) | FR43890E (ko) |
GB (1) | GB425219A (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2457353A (en) * | 1945-07-30 | 1948-12-28 | Paragon Revolute Corp | Quartz lamp assembly |
-
0
- BE BE398544D patent/BE398544A/xx unknown
-
1932
- 1932-09-26 DE DEN34220D patent/DE653844C/de not_active Expired
-
1933
- 1933-08-05 GB GB22082/33A patent/GB425219A/en not_active Expired
- 1933-08-28 US US687230A patent/US1951124A/en not_active Expired - Lifetime
- 1933-09-11 FR FR43890D patent/FR43890E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE653844C (de) | 1937-12-04 |
BE398544A (ko) | |
US1951124A (en) | 1934-03-13 |
FR43890E (fr) | 1934-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB415358A (en) | Improvements in electric discharge tubes with positive column discharge | |
GB425219A (en) | Improvements in or relating to electric discharge tubes | |
GB431923A (en) | Improvements in or relating to artificially cooled mercury vapour discharge tubes | |
GB422897A (en) | Improvements in or relating to electric discharge tubes | |
GB457740A (en) | Improvements in electric discharge tubes | |
GB433811A (en) | Improvements in or relating to electric discharge tubes | |
GB389747A (en) | Improvements in electric discharge tubes | |
GB425601A (en) | Improvements in or relating to electric discharge tubes | |
GB410352A (en) | Improvements in and relating to electric discharge apparatus | |
GB400388A (en) | Improvements in or relating to electric discharge tubes | |
GB490627A (en) | Improvements relating to electric discharge tubes | |
GB445676A (en) | Improvements in cathode-ray oscillographs and other electric discharge tubes | |
GB377041A (en) | Improvements in or relating to gasfilled discharge tubes | |
GB386638A (en) | Improvements relating to luminous electric discharge tubes or lamps | |
GB386290A (en) | Improvements in/or relating to electric discharge tubes | |
GB383945A (en) | Improvements in or relating to electric discharge tubes | |
GB422833A (en) | Improvements in or relating to electron discharge tubes and incandescent electric lamps | |
GB100959A (en) | Improvements in Electric Vacuum Devices with Incandescent Cathodes. | |
GB415165A (en) | Improvements in or relating to electric discharge tubes | |
GB417441A (en) | Improvements in or relating to electric discharge tubes | |
GB415166A (en) | Improvements in or relating to electric discharge tubes or the like | |
GB357002A (en) | Improvements relating to electron discharge tubes | |
GB430460A (en) | Improvements in electric discharge tubes | |
GB433854A (en) | Improvements in or relating to electric discharge tubes | |
GB443535A (en) | Improvements in or relating to indirectly heated cathodes for electric discharge tubes |